RAFAEL Nadal rocked his sleeveless tank top for the first time in nearly a decade in his straight sets win over Victor Estrella Burgos on Monday night, but he was beaten to the punch in creating the first fashion headlines on the opening day at Melbourne Park.

Nike has trotted some of its biggest stars out in a kit likely to help them stand out on the dance floor should they decide to hit the Melbourne nightclubs after their on-court duties are finished for the day.

Brit Kyle Edmund and World No.3 Grigor Dimitrov from Bulgaria both wore pink and black outfits that drew attention from the media, the crowd and even Andy Murray's mum.

Judy Murray - Great Britain's former Fed Cup captain - said Edmund looked like he was wearing something inspired by licorice allsorts as he surged to an upset 6-7 6-3 3-6 6-3 6-4 win over Kevin Anderson.

Clearly sheepish about his new get-up, Edmund could only laugh at himself when explaining he wasn't the biggest fan of his loud threads. He also said he had no power in deciding what he wore, but was at the mercy of his sponsors.

Dimitrov wore the same clothes and took the commotion about his outfit in his stride when pressed on it after his 6-3 6-2 6-1 win over Dennis Novak. It became a hot topic among the Channel Seven commentators as John Fitzgerald pressed Dimitrov about it in his on-court interview.

"Some of them are going to know what colour that is. We had a debate. I said a combination of peach. Geoff Masters thought it might be pink but he also thought salmon," Fitzgerald said.

Dimitrov played up to the vocal crowd, encouraging them to have their say.